| 摘要 |
PURPOSE:The titled filter facilitated in the fixing and exchange of filter paper, in a filter main body split into an upper and lower parts, constituted so as to place a filter paper presser having a leaf spring or a coil spring on the filter paper placed on a lower porous plate while to press the filter paper by the elastic deformation of the spring caused by the pressng of the filter upper part. CONSTITUTION:Filter paper 1 is placed on the porous plate 10 of a filter lower part 3 and a filter paper presser 11 having a leaf spring 13 or a coil spring 13' is placed thereon. The spring is subjected to elastic deformation by covering a filter upper part 2 and the filter paper presser 12 is pressed to fix the filter paper 11. The taking out or exchange of the filter paper 11 may be performed by removing the upper part 2 and the filter paper presser 12. By this structure, the fixing and exchange of the filter paper 11 become extremely simple.
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